Clippy changes

src/song.rs

@@ -96,18 +96,18 @@ impl Default for Song {
 impl Song {
     pub fn to_metadata_json(&self, pretty: bool) -> Result<String, serde_json::Error> {
         if pretty {
-            return serde_json::to_string_pretty(&self);
+            serde_json::to_string_pretty(&self)
         } else {
-            return serde_json::to_string(&self);
+            serde_json::to_string(&self)
         }
     }
 
     pub fn song_path(&self) -> Result<String, std::io::Error> {
         if self.directory.is_empty() {
-            return Err(std::io::Error::new(
+            Err(std::io::Error::new(
                 std::io::ErrorKind::Other,
                 "Directory does not exist",
-            ));
+            ))
         }
 
         let directory = &self.directory;
@@ -121,12 +121,12 @@ impl Song {
 
             buffer += &self.filename.clone();
 
-            return Ok(buffer);
+            Ok(buffer)
         } else {
-            return Err(std::io::Error::new(
+            Err(std::io::Error::new(
                 std::io::ErrorKind::Other,
                 "Could not access last character of directory",
-            ));
+            ))
         }
     }
 
@@ -140,17 +140,15 @@ impl Song {
                 file.read_to_end(&mut buffer)?;
 
                 if buffer.len() == 0 {
-                    return Err(std::io::Error::new(
+                    Err(std::io::Error::new(
                         std::io::ErrorKind::Other,
                         "File is empty",
-                    ));
+                    ))
                 } else {
-                    return Ok(buffer);
+                    Ok(buffer)
                 }
             }
-            Err(er) => {
-                return Err(er);
-            }
+            Err(er) => Err(er),
         }
     }